A method and device in a communication node used for wireless communication

Abstract

The present application discloses a method and apparatus in a communication node used for wireless communication. The communication node receives a first signaling; the first signaling is used to determine the release of only one of a first logical channel group or a second logical channel group; wherein the first logical channel group includes at least one logical channel, and the second logical channel group includes at least one logical channel; data transmitted through the first logical channel group and data transmitted through the second logical channel group are associated with a PDCP entity. The present application can support lossless transmission of broadcast / multicast data in the air interface during the conversion process between PTP and PTM transmission modes.

Description

Technical Field

[0001] The present application relates to a transmission method and device in a wireless communication system, and in particular to a transmission method and device for multiple connections. Background Art

[0002] In the future, the application scenarios of wireless communication systems will become more and more diversified, and different application scenarios will put forward different performance requirements for the system. In order to meet the different performance requirements of various application scenarios, the 3GPP (3rd Generation Partner Project) RAN (Radio Access Network) #72 plenary meeting decided to study the new radio (NR) (or Fifth Generation, 5G) technology, and the NR WI (Work Item) was passed at the 3GPP RAN #75 plenary meeting, and the standardization work on NR began.

[0003] Broadcast / multicast transmission technology is widely used in cellular network systems, such as MBMS (Multimedia Broadcast Multicast Service) in 4G LTE (Long Term Evolution) systems. The main feature of broadcast / multicast transmission is that network equipment can send the same broadcast / multicast data to multiple terminal nodes at the same time. It has important value in scenarios such as broadcasting and television, disaster warning, emergency services, industrial control, and Internet of Vehicles. In LTE MBMS, the eNB uses a PDCCH (Physical Downlink Control Channel) to schedule multiple terminal nodes to receive PDSCH (Physical Downlink Shared Channel) or PMCH (Physical Multicast Channel) containing broadcast / multicast data. Broadcast / multicast related identifiers include SC-RNTI (Single Cell RNTI), SC-N-RNTI (Single Cell Notification RNTI) and G-RNTI (Group RNTI). Summary of the invention

[0004] The network side can select PTM (Point-to-MultiPoint) or PTP (Point-to-MultiPoint) as the transmission mode for broadcast / multicast data according to the user distribution and the changes in the channel status. PTM (Point-to-MultiPoint) or PTP (Point-to-MultiPoint) transmission mode can be selected. There may be data loss during the conversion process between PTP and PTM transmission modes. Therefore, in order to support lossless transmission of broadcast / multicast data on the air interface, the two transmission modes can exist at the same time during the conversion process between PTP and PTM transmission modes; after the conversion is completed, usually only one of the transmission modes needs to be retained, but there is no solution on how to effectively implement the conversion of transmission modes and the corresponding bearer control.

[0005] In view of the above problems, this application provides a solution. In the description of the above problems, the terrestrial network (TN) scenario is used as an example; this application is also applicable to scenarios such as non-terrestrial communication (NTN) and V2X, achieving similar technical effects in TN scenarios. In addition, the use of a unified solution for different scenarios can also help reduce hardware complexity and cost.

[0006] As an embodiment, the interpretation of the terminology in the present application refers to the definition of the TS36 series of specification protocols of 3GPP.

[0007] As an example, the interpretation of the terms in the present application refers to the definitions of the TS38 series of specification protocols of 3GPP.

[0008] As an example, the interpretation of the terms in the present application refers to the definitions of the TS37 series of specification protocols of 3GPP.

[0009] As an embodiment, the interpretation of the terms in this application refers to the definition of the standard protocol of IEEE (Institute of Electrical and Electronics Engineers).

[0010] It should be noted that, in the absence of conflict, the embodiments and features in any node of the present application can be applied to any other node. In the absence of conflict, the embodiments and features in the embodiments of the present application can be arbitrarily combined with each other.

[0011] The present application discloses a method in a first node used for wireless communication, characterized by comprising:

[0012] receiving first signaling, the first signaling being used to determine the release of only one of the first logical channel group or the second logical channel group;

[0013] The first logical channel group includes at least one logical channel, and the second logical channel group includes at least one logical channel; data transmitted through the first logical channel group and data transmitted through the second logical channel group are associated with one PDCP entity.

[0014] As an embodiment, the first signaling includes all or part of the RRCReconfiguration message.

[0015] As an embodiment, the first signaling includes all or part of the RRCConnectionReconfiguration message.

[0016] As an embodiment, the first signaling includes an RRC (Radio Resource Control) message.

[0017] As an embodiment, the first signaling includes all or part of an IE (Information Element) in an RRC message.

[0018] As an embodiment, the phrase said first signaling is used to determine the release of only one of the first logical channel group or the second logical channel group, including: as a response to receiving the first signaling, stop monitoring the scheduling signaling of the data transmitted through the first logical channel group on the air interface.

[0019] As an embodiment, the phrase said first signaling is used to determine the release of only one of the first logical channel group or the second logical channel group, including: as a response to receiving the first signaling, stop monitoring the scheduling signaling of the data transmitted through the second logical channel group on the air interface.

[0020] As an embodiment, the behavior monitoring described in this application includes: blind detection.

[0021] As an embodiment, the behavior monitoring described in the present application includes: coherent detection of feature sequences.

[0022] As an embodiment, the behavior monitoring described in the present application includes: CRC (Cyclic Redundancy Check) check.

[0023] As an embodiment, the scheduling signaling of the data transmitted through the first logical channel group on the air interface is identified by a non-unicast RNTI, and the scheduling signaling of the data transmitted through the second logical channel group on the air interface is identified by a unicast RNTI.

[0024] As an embodiment, the unicast RNTI described in the present application includes C-RNTI (Cell RNTI, cell RNTI).

[0025] As an embodiment, the number of bits included in the unicast RNTI described in the present application is a positive integer multiple of 8.

[0026] As an embodiment, the unicast RNTI described in the present application includes 24 bits.

[0027] As an embodiment, the non-unicast RNTI described in the present application includes G-RNTI (Group RNTI).

[0028] As an embodiment, the number of bits included in the non-unicast RNTI described in the present application is a positive integer multiple of 8.

[0029] As an embodiment, the non-unicast RNTI described in the present application includes 24 bits.

[0030] As an embodiment, the physical layer channel occupied by the data transmitted through the first logical channel group is a non-unicast channel, and the physical layer channel occupied by the data transmitted through the second logical channel group is a unicast channel.

[0031] As an embodiment, the non-unicast channel includes PMCH (Physical Multicast Channel).

[0032] As an embodiment, the non-unicast channel includes a PBCH (Physical Broadcast Channel).

[0033] As an embodiment, the non-unicast channel includes PDSCH.

[0034] As an embodiment, the unicast channel includes PDSCH.

[0035] As an embodiment, the unicast channel includes PSSCH.

[0036] As an embodiment, the data transmitted through the first logical channel group corresponds to a non-unicast service.

[0037] As an embodiment, the data transmitted through the second logical channel group corresponds to a non-unicast service.

[0038] As an embodiment, the non-unicast service includes a Groupcast service.

[0039] As an embodiment, the non-unicast service includes a Multicast service.

[0040] As an embodiment, the non-unicast service includes a Broadcast service.

[0041] As an embodiment, the data transmitted through the first logical channel group is transmitted through a first type of data packet.

[0042] As an embodiment, the data transmitted through the second logical channel group is transmitted through a first type of data packet.

[0043] As an embodiment, the first type of data packet includes: PDCP PDU (Protocol Date Unit, protocol data unit).

[0044] As an embodiment, the first type of data packet includes: PDCP SDU (Service Date Unit).

[0045] As an embodiment, the phrase data transmitted through the first logical channel group and data transmitted through the second logical channel group are associated with one PDCP entity includes: data transmitted through the first logical channel group and data transmitted through the second logical channel group are associated with one RLC entity, and the one RLC entity is associated with the one PDCP entity.

[0046] As an embodiment, the phrase data transmitted through the first logical channel group and data transmitted through the second logical channel group are associated with one PDCP entity includes: data transmitted through the first logical channel group and data transmitted through the second logical channel group are respectively associated with two RLC entities, and the two RLC entities are associated with the one PDCP entity.

[0047] According to one aspect of the present application, it is characterized in that the first signaling is used to determine the release of only one of the first logical channel group or the second logical channel group, including: when the first signaling is identified by a non-unicast RNTI, the first logical channel group is released; when the first signaling is identified by a unicast RNTI, the first logical channel group is retained.

[0048] As an embodiment, it is determined whether the first logical channel group is released or retained according to whether the first signaling is identified by a non-unicast RNTI or a unicast RNTI.

[0049] As an embodiment, whether the first logical channel group is released or retained is related to whether the first signaling is identified by a non-unicast RNTI or a unicast RNTI.

[0050] As an embodiment, the behavior that the first logical channel group is released includes: the configuration of the first logical channel group is released.

[0051] As an embodiment, the behavior that the first logical channel group is released includes: stopping monitoring the scheduling signaling of the data transmitted through the first logical channel group on the air interface.

[0052] As an embodiment, the behavior that the first logical channel group is released includes: the configuration of the radio bearer to which the first logical channel group belongs is released.

[0053] As an embodiment, the configuration of the radio bearer to which the first logical channel group belongs includes at least one of PDCP entity configuration, SDAP entity configuration, RLC entity configuration, or logical channel configuration.

[0054] According to another aspect of the present application, it is characterized in that the phrase "the first signaling is used to determine the release of only one of the first logical channel group or the second logical channel group" includes: the first signaling indicates a first threshold, and the first threshold is used to determine the release of the second logical channel group.

[0055] As an embodiment, the behavior that the second logical channel group is released includes: the configuration of the second logical channel group is released.

[0056] As an embodiment, the behavior that the second logical channel group is released includes: stopping monitoring the scheduling signaling of the data transmitted through the second logical channel group on the air interface.

[0057] As an embodiment, the behavior that the second logical channel group is released includes: the configuration of the radio bearer to which the second logical channel group belongs is released.

[0058] As an embodiment, the phrase that the first threshold is used to determine the release of the second logical channel group includes: when the second sequence number is greater than or equal to the first threshold, the second logical channel group is released.

[0059] As an embodiment, the phrase "the first threshold is used to determine the release of the second logical channel group" includes: when the difference between the second sequence number and the first sequence number is less than the first threshold, the second logical channel group is released.

[0060] As an embodiment, in the present application, the second sequence number includes: the sequence number of the first type of data packet occupied by the data transmitted through the second logical channel.

[0061] As a sub-embodiment of the above embodiment, the first type of data packets are successfully received.

[0062] As a sub-embodiment of the above embodiment, the first type of data packets are correctly received.

[0063] As a sub-embodiment of the above embodiment, the first category of data packets are within a receiving window, and the receiving window belongs to a protocol layer to which the first category of data packets belong.

[0064] As a sub-embodiment of the above embodiment, the first category data packet is a first category data packet with the largest sequence number among all first category data packets occupied by data transmitted through the second logical channel group.

[0065] As an embodiment, in the present application, the first sequence number includes: the sequence number of the first type of data packet occupied by the data transmitted through the first logical channel group.

[0066] As a sub-embodiment of the above embodiment, the first type of data packets are successfully received.

[0067] As a sub-embodiment of the above embodiment, the first type of data packets are correctly received.

[0068] As a sub-embodiment of the above embodiment, the first category of data packets are within a receiving window, and the receiving window belongs to a protocol layer to which the first category of data packets belong.

[0069] As a sub-embodiment of the above embodiment, the first category data packet is a first category data packet with the largest sequence number among all first category data packets occupied by data transmitted through the first logical channel.

[0070] The present application discloses a method for a second node used for wireless communication, characterized by comprising:

[0071] sending first signaling, wherein the first signaling is used to determine the release of only one of the first logical channel group or the second logical channel group;

[0072] The first logical channel group includes at least one logical channel, and the second logical channel group includes at least one logical channel; data transmitted through the first logical channel group and data transmitted through the second logical channel group are associated with one PDCP entity.

[0073] The present application discloses a first node used for wireless communication, characterized in that it includes:

[0074] A first receiver receives a first signaling, wherein the first signaling is used to determine the release of only one of the first logical channel group or the second logical channel group;

[0075] The first logical channel group includes at least one logical channel, and the second logical channel group includes at least one logical channel; data transmitted through the first logical channel group and data transmitted through the second logical channel group are associated with one PDCP entity.

[0076] The present application discloses a second node used for wireless communication, characterized in that it includes:

[0077] A second transmitter sends a first signaling, wherein the first signaling is used to determine the release of only one of the first logical channel group or the second logical channel group;

[0078] The first logical channel group includes at least one logical channel, and the second logical channel group includes at least one logical channel; data transmitted through the first logical channel group and data transmitted through the second logical channel group are associated with one PDCP entity.

[0079] As an embodiment, the problem to be solved by the present application includes: radio bearer control when the transmission mode is switched, such as radio bearer release.

[0080] As an embodiment, the benefits of the above method include: releasing redundant wireless bearers, reducing energy consumption, and improving resource utilization efficiency.

[0081] As an embodiment, the benefits of the above method include: supporting lossless transmission of broadcast / multicast data on the air interface during the conversion process between PTP and PTM transmission modes. BRIEF DESCRIPTION OF THE DRAWINGS

[0082] Other features, objects and advantages of the present application will become more apparent by reading the detailed description of non-limiting embodiments with reference to the following drawings:

[0083] Figure 1 A flow chart showing the transmission of a first signaling according to an embodiment of the present application is shown;

[0084] Figure 2 A schematic diagram of a network architecture according to an embodiment of the present application is shown;

[0085] Figure 3 A schematic diagram showing an embodiment of a wireless protocol architecture of a user plane and a control plane according to an embodiment of the present application;

[0086] Figure 4A schematic diagram showing a first communication device and a second communication device according to an embodiment of the present application is shown;

[0087] Figure 5 A flow chart showing wireless signal transmission according to an embodiment of the present application is shown;

[0088] Figure 6 A flowchart of wireless signal transmission according to another embodiment of the present application is shown;

[0089] Figure 7 A structural block diagram of a processing device used in a first node according to an embodiment of the present application is shown;

[0090] Figure 8 A structural block diagram of a processing device for a second node according to an embodiment of the present application is shown. DETAILED DESCRIPTION

[0091] The technical solution of the present application will be further described in detail below in conjunction with the accompanying drawings. It should be noted that, unless there is a conflict, the embodiments in the present application and the features in the embodiments can be combined with each other arbitrarily.

[0092] Example 1

[0093] Embodiment 1 illustrates a flow chart of the transmission of the first signaling according to an embodiment of the present application, as shown in the attached Figure 1 Attached Figure 1 In the figure, each box represents a step. It should be emphasized that the order of the boxes in the figure does not represent the temporal relationship between the steps represented.

[0094] In embodiment 1, the first node in the present application receives first signaling in step 101, where the first signaling is used to determine the release of only one of the first logical channel group or the second logical channel group;

[0095] The first logical channel group includes at least one logical channel, and the second logical channel group includes at least one logical channel; data transmitted through the first logical channel group and data transmitted through the second logical channel group are associated with one PDCP entity.

[0096] As an embodiment, the first signaling includes all or part of the RRCReconfiguration message.

[0097] As an embodiment, the first signaling includes all or part of the RRCConnectionReconfiguration message.

[0098] As an embodiment, the first signaling includes an RRC (Radio Resource Control) message.

[0099] As an embodiment, the first signaling includes all or part of an IE (Information Element) in an RRC message.

[0100] As an embodiment, the first signaling includes all or part of a field in an IE in an RRC message.

[0101] As an embodiment, the phrase said first signaling is used to determine the release of only one of the first logical channel group or the second logical channel group, including: as a response to receiving the first signaling, stopping receiving data through the first logical channel group.

[0102] As an embodiment, the phrase said first signaling is used to determine the release of only one of the first logical channel group or the second logical channel group, including: as a response to receiving the first signaling, stopping receiving data through the second logical channel group.

[0103] As an embodiment, the phrase said first signaling is used to determine the release of only one of the first logical channel group or the second logical channel group, including: as a response to receiving the first signaling, stopping receiving data through the radio bearer to which the first logical channel group belongs.

[0104] As an embodiment, the phrase said first signaling is used to determine the release of only one of the first logical channel group or the second logical channel group, including: as a response to receiving the first signaling, stopping receiving data through the radio bearer to which the second logical channel group belongs.

[0105] As an embodiment, in the present application, the radio bearer to which the first logical channel group belongs includes MRB (Multicast Radio Bearer).

[0106] As an embodiment, in the present application, the radio bearer to which the first logical channel group belongs includes MBS-RB (Multicast and Broadcast Service-Radio Bearer).

[0107] As an embodiment, in the present application, the radio bearer to which the first logical channel group belongs includes an SC-MRB (Single Cell-Multicast Radio Bearer).

[0108] As an embodiment, in the present application, the radio bearer to which the first logical channel group belongs includes DRB (Data Radio Bearer).

[0109] As an embodiment, in the present application, the radio bearer to which the first logical channel group belongs includes an RLC channel (Channel).

[0110] As an embodiment, in the present application, the wireless bearer to which the first logical channel group belongs includes an RLC bearer.

[0111] As an embodiment, in the present application, the radio bearer to which the first logical channel group belongs includes a bearer transmitted in a PTP (Point-to-Point) manner.

[0112] As an embodiment, in the present application, the radio bearer to which the first logical channel group belongs includes a bearer transmitted in a PTM (Point-to-MultiPoint) manner.

[0113] As an embodiment, in the present application, the radio bearer to which the first logical channel group belongs includes a PTP branch.

[0114] As an embodiment, the PTP branch includes leg.

[0115] As an embodiment, the PTP branch includes link.

[0116] As an embodiment, the PTP branch includes branch.

[0117] As an embodiment, in the present application, the radio bearer to which the first logical channel group belongs includes a PTM branch.

[0118] As an embodiment, the PTM branch includes leg.

[0119] As an embodiment, the PTM branch includes link.

[0120] As an embodiment, the PTM branch includes branch.

[0121] As an embodiment, in the present application, the radio bearer to which the second logical channel group belongs includes MRB (Multicast Radio Bearer).

[0122] As an embodiment, in the present application, the radio bearer to which the second logical channel group belongs includes MBS-RB (Multicast and Broadcast Service-Radio Bearer).

[0123] As an embodiment, in the present application, the radio bearer to which the second logical channel group belongs includes an SC-MRB (Single Cell-Multicast Radio Bearer).

[0124] As an embodiment, in the present application, the radio bearer to which the second logical channel group belongs includes DRB (Data Radio Bearer).

[0125] As an embodiment, in the present application, the radio bearer to which the second logical channel group belongs includes an RLC channel (Channel).

[0126] As an embodiment, in the present application, the radio bearer to which the second logical channel group belongs includes an RLC bearer.

[0127] As an embodiment, in the present application, the radio bearer to which the second logical channel group belongs includes a bearer transmitted in a PTP (Point-to-Point) manner.

[0128] As an embodiment, in the present application, the radio bearer to which the second logical channel group belongs includes a bearer transmitted in a PTM (Point-to-MultiPoint) manner.

[0129] As an embodiment, in the present application, the radio bearer to which the second logical channel group belongs includes a PTP branch.

[0130] As an embodiment, the PTP branch includes leg.

[0131] As an embodiment, the PTP branch includes link.

[0132] As an embodiment, the PTP branch includes branch.

[0133] As an embodiment, in the present application, the radio bearer to which the second logical channel group belongs includes a PTM branch.

[0134] As an embodiment, the PTM branch includes leg.

[0135] As an embodiment, the PTM branch includes link.

[0136] As an embodiment, the PTM branch includes branch.

[0137] As an embodiment, the phrase "the first signaling" is used to determine the release of only one of the first logical channel group or the second logical channel group, including: stopping monitoring the scheduling signaling of the data transmitted through the first logical channel group on the air interface.

[0138] As an embodiment, the phrase "the first signaling" is used to determine the release of only one of the first logical channel group or the second logical channel group, including: stopping monitoring the scheduling signaling of the data transmitted through the second logical channel group on the air interface.

[0139] As an embodiment, the behavior monitoring described in this application includes: blind detection.

[0140] As an embodiment, the behavior monitoring described in the present application includes: coherent detection of feature sequences.

[0141] As an embodiment, the behavior monitoring described in the present application includes: CRC (Cyclic Redundancy Check) check.

[0142] As an embodiment, the behavior monitoring described in this application includes: monitoring.

[0143] As an embodiment, the behavior of monitoring the scheduling signaling of the data transmitted through the first logical channel group on the air interface includes: monitoring whether the scheduling signaling exists on the physical channel occupied by the scheduling signaling.

[0144] As an embodiment, the behavior of monitoring the scheduling signaling of the data transmitted through the second logical channel group on the air interface includes: monitoring whether the scheduling signaling exists on the physical channel occupied by the scheduling signaling.

[0145] As an embodiment, the first logical channel and the second logical channel group are configured simultaneously.

[0146] As an embodiment, the first logical channel is configured before the second logical channel group.

[0147] As an embodiment, the first logical channel is configured after the second logical channel group.

[0148] As an embodiment, the first logical channel and the second logical channel group are configured through different RRC signaling respectively.

[0149] As an embodiment, the first logical channel and the second logical channel group are configured through the same RRC signaling.

[0150] As an embodiment, the first logical channel group includes multiple logical channels, and the one logical channel is one of the multiple logical channels.

[0151] As an embodiment, the first logical channel group includes K1 logical channels, and the one logical channel is one of the K1 logical channels.

[0152] As a sub-embodiment of the above embodiment, K1 is a positive integer greater than 1.

[0153] As an embodiment, the first logical channel group includes multiple logical channels, and the one logical channel is one of the multiple logical channels.

[0154] As an embodiment, the first logical channel group includes K2 logical channels, and the one logical channel is one of the K2 logical channels.

[0155] As a sub-embodiment of the above embodiment, K2 is a positive integer greater than 1.

[0156] As an embodiment, the data transmitted through the first logical channel group corresponds to a non-unicast service.

[0157] As an embodiment, the data transmitted through the second logical channel group corresponds to a non-unicast service.

[0158] As an embodiment, the non-unicast service includes a Groupcast service.

[0159] As an embodiment, the non-unicast service includes a Multicast service.

[0160] As an embodiment, the non-unicast service includes a Broadcast service.

[0161] As an embodiment, the data transmitted through the first logical channel group is transmitted through a first type of data packet.

[0162] As an embodiment, the data transmitted through the second logical channel group is transmitted through a first type of data packet.

[0163] As an embodiment, the first type of data packet includes: PDCP PDU (Protocol Date Unit, protocol data unit).

[0164] As an embodiment, the first type of data packet includes: PDCP SDU (Service Date Unit).

[0165] As an embodiment, the first type of data packet includes: RLC PDU.

[0166] As an embodiment, the first type of data packet includes: RLC SDU.

[0167] As an embodiment, the data transmitted through the first logical channel group corresponds to a unicast service.

[0168] As an embodiment, the data transmitted through the second logical channel group corresponds to a unicast service.

[0169] As an embodiment, the behavior transmission includes: sending.

[0170] As an embodiment, the behavior transmission includes: transmitting.

[0171] As an embodiment, the behavior transmission includes: receiving.

[0172] As an embodiment, the phrase data transmitted through the first logical channel group and data transmitted through the second logical channel group are associated with one PDCP entity includes: data transmitted through the first logical channel group and data transmitted through the second logical channel group are associated with one RLC entity, and the one RLC entity is associated with the one PDCP entity.

[0173] As an embodiment, the phrase data transmitted through the first logical channel group and data transmitted through the second logical channel group are associated with one PDCP entity includes: data transmitted through the first logical channel group and data transmitted through the second logical channel group are respectively associated with two RLC entities, and the two RLC entities are associated with the one PDCP entity.

[0174] As an embodiment, the phrase data transmitted by the first logical channel group and data transmitted through the second logical channel group are associated with one PDCP entity includes: the first logical channel group and the second logical channel group are associated with one RLC entity, and the one RLC entity is associated with the one PDCP entity.

[0175] As an embodiment, the phrase data transmitted by the first logical channel group and data transmitted through the second logical channel group are associated with one PDCP entity includes: the first logical channel group and the second logical channel group are respectively associated with two RLC entities, and the two RLC entities are associated with the one PDCP entity.

[0176] As an embodiment, the phrase data transmitted by the first logical channel group and data transmitted through the second logical channel group are associated with one PDCP entity includes: the first logical channel group and the second logical channel group belong to two RLC bearers respectively, and the two RLC bearers are associated with the one PDCP entity.

[0177] As an embodiment, the phrase "data transmitted through the first logical channel group" includes: data transmitted through any logical channel in the first logical channel group.

[0178] As an embodiment, the phrase "data transmitted through the first logical channel group" includes: data transmitted through at least one logical channel in the first logical channel group.

[0179] As an embodiment, the phrase "data transmitted through the second logical channel group" includes: data transmitted through any logical channel in the second logical channel group.

[0180] As an embodiment, the phrase "data transmitted through the second logical channel group" includes: data transmitted through at least one logical channel in the second logical channel group.

[0181] As an embodiment, the scheduling signaling of the data transmitted through the first logical channel group on the air interface is identified by a non-unicast RNTI, and the scheduling signaling of the data transmitted through the second logical channel group on the air interface is identified by a unicast RNTI.

[0182] As an embodiment, the phrase non-unicast in this application includes Groupcast.

[0183] As an embodiment, the phrase non-unicast in this application includes Multicast.

[0184] As an embodiment, the phrase non-unicast in this application includes Broadcast.

[0185] As an embodiment, the unicast RNTI described in the present application includes C-RNTI (Cell RNTI, cell RNTI).

[0186] As an embodiment, the number of bits included in the unicast RNTI described in the present application is a positive integer multiple of 8.

[0187] As an embodiment, the unicast RNTI described in the present application includes 16 bits.

[0188] As an embodiment, the unicast RNTI described in the present application includes 24 bits.

[0189] As an embodiment, the non-unicast RNTI described in the present application includes G-RNTI (Group RNTI).

[0190] As an embodiment, the non-unicast RNTI described in the present application includes MBS-RNTI (Multicast and Broadcast Service RNTI, multicast broadcast service RNTI).

[0191] As an embodiment, the number of bits included in the non-unicast RNTI described in the present application is a positive integer multiple of 8.

[0192] As an embodiment, the non-unicast RNTI described in the present application includes 16 bits.

[0193] As an embodiment, the non-unicast RNTI described in the present application includes 24 bits.

[0194] As an embodiment, the phrase that the scheduling signaling of the data transmitted through the first logical channel group on the air interface is identified by a non-unicast RNTI includes: determining whether the scheduling signaling of the data transmitted through the first logical channel group on the air interface exists based on the non-unicast RNTI.

[0195] As an embodiment, the phrase that the scheduling signaling of the data transmitted through the first logical channel group on the air interface is identified by a non-unicast RNTI includes: determining the time and frequency resources occupied by the scheduling signaling transmission of the data transmitted through the first logical channel group on the air interface based on the non-unicast RNTI.

[0196] As an embodiment, the phrase that the scheduling signaling of the data transmitted through the first logical channel group on the air interface is identified by a non-unicast RNTI includes: the non-unicast RNTI is used for CRC scrambling of the scheduling signaling of the data transmitted through the first logical channel group on the air interface.

[0197] As an embodiment, the phrase that the scheduling signaling of the data transmitted through the first logical channel group on the air interface is identified by the unicast RNTI includes: determining whether the scheduling signaling of the data transmitted through the first logical channel group on the air interface exists according to the unicast RNTI.

[0198] As an embodiment, the phrase that the scheduling signaling of the data transmitted through the first logical channel group on the air interface is identified by the unicast RNTI includes: determining the time and frequency resources occupied by the scheduling signaling transmission of the data transmitted through the first logical channel group on the air interface based on the unicast RNTI.

[0199] As an embodiment, the phrase that the scheduling signaling of the data transmitted through the first logical channel group on the air interface is identified by the unicast RNTI includes: the unicast RNTI is used for CRC scrambling of the scheduling signaling of the data transmitted through the first logical channel group on the air interface.

[0200] As an embodiment, the data transmitted through the first logical channel group is transmitted on PDSCH (Physical Downlink Shared Channel).

[0201] As an embodiment, the data transmitted through the first logical channel group is transmitted on a PSSCH (Physical Sidelink Shared CHannel).

[0202] As an embodiment, the data transmitted through the second logical channel group is transmitted on the PDSCH.

[0203] As an embodiment, the data transmitted through the second logical channel group is transmitted on the PSSCH.

[0204] As an embodiment, the scheduling signaling of the data transmitted by the phrase through the first logical channel group on the air interface includes DCI (Downlink Control Information).

[0205] As an embodiment, the scheduling signaling of the data transmitted by the phrase through the first logical channel group on the air interface includes SCI (Sidelink Control Information).

[0206] As an embodiment, the scheduling signaling of the data transmitted through the first logical channel group on the air interface includes physical layer signaling.

[0207] As an embodiment, the scheduling signaling of the data transmitted through the first logical channel group in the air interface is transmitted on PDCCH (Physical Downlink Control Channel).

[0208] As an embodiment, the scheduling signaling of the air interface of the data transmitted through the first logical channel group is transmitted on the PCCCH.

[0209] As an embodiment, the physical layer channel occupied by the data transmitted through the first logical channel group is a unicast channel, and the physical layer channel occupied by the data transmitted through the second logical channel group is a unicast channel.

[0210] As an embodiment, the physical layer channel occupied by the data transmitted through the first logical channel group is a non-unicast channel, and the physical layer channel occupied by the data transmitted through the second logical channel group is a unicast channel.

[0211] As an embodiment, the non-unicast channel includes PMCH (Physical Multicast Channel).

[0212] As an embodiment, the non-unicast channel includes a PBCH (Physical Broadcast Channel).

[0213] As an embodiment, the non-unicast channel includes PDSCH.

[0214] As an embodiment, the unicast channel includes PDSCH.

[0215] As an embodiment, the unicast channel includes PSSCH.

[0216] As an embodiment, the phrase "the first signaling" is used to determine the release of only one of the first logical channel group or the second logical channel group, including: when the first signaling is identified by a non-unicast RNTI, the first logical channel group is released; when the first signaling is identified by a unicast RNTI, the first logical channel group is retained.

[0217] As an embodiment, the phrase that the first signaling is used to determine the release of only one of the first logical channel group or the second logical channel group includes: the first signaling indicates a first threshold, and the first threshold is used to determine the release of the second logical channel group.

[0218] As an embodiment, the first signaling includes the configuration of the second logical channel group.

[0219] As an embodiment, the phrase "configuration of the second logical channel group" includes: configuration of the radio bearer to which the second logical channel group belongs.

[0220] As an embodiment, the phrase "configuration of the second logical channel group" includes: configuration of any logical channel in the second logical channel group.

[0221] As an embodiment, the phrase "configuration of the second logical channel group" includes: configuration of at least one logical channel in the second logical channel group.

[0222] As an embodiment, the phrase "configuration of the second logical channel group" includes: configuration of all logical channels in the second logical channel group.

[0223] As an embodiment, the configuration of the second logical channel group includes at least one of a BSR (Buffer Status Report) configuration or a logical channel group identity.

[0224] As an embodiment, the configuration of any logical channel in the second logical channel group includes at least one of the identity of the logical channel, priority, SR (Scheduling Request) identity, or logical channel group identity.

[0225] As an embodiment, the configuration of the radio bearer to which the second logical channel group belongs includes at least one of a radio bearer identity, a PDCP entity configuration, a SDAP entity configuration, an RLC entity configuration, or a logical channel configuration.

[0226] As an embodiment, the configuration of the radio bearer to which the second logical channel group belongs includes at least one of a radio bearer identity, a PDCP configuration, a SDAP configuration, an RLC bearer configuration, or a MAC configuration.

[0227] As an embodiment, the RLC bearer configuration includes at least one of a logical channel identity, an RLC configuration, a logical channel configuration, or a corresponding wireless bearer identity.

[0228] As an embodiment, the second logical channel group is established as a response to receiving the first signaling.

[0229] As an embodiment, as a response to receiving the first signaling, the second logical channel group is activated.

[0230] As an embodiment, the problem to be solved by the present application includes: radio bearer control when the transmission mode is switched, such as radio bearer release.

[0231] As an embodiment, the benefits of the above method include: releasing redundant wireless bearers, reducing energy consumption, and improving resource utilization efficiency.

[0232] As an embodiment, the benefits of the above method include: supporting lossless transmission of broadcast / multicast data on the air interface during the conversion process between PTP and PTM transmission modes.

[0233] Example 2

[0234] Embodiment 2 illustrates a schematic diagram of a network architecture according to an embodiment of the present application, as shown in the attached Figure 2 Attached Figure 2A diagram of a network architecture 200 of a 5G NR (New Radio), LTE (Long-Term Evolution) and LTE-A (Long-Term Evolution Advanced) system is illustrated. The 5G NR or LTE network architecture 200 may be referred to as a 5G System (5G System) / EPS (Evolved Packet System) 200 or some other suitable terminology. The 5GS / EPS 200 may include one or more UEs (User Equipment) 201, NG-RAN (Next Generation Radio Access Network) 202, 5GC (5G Core Network) / EPC (Evolved Packet Core) 210, HSS (Home Subscriber Server) / UDM (Unified Data Management) 220, and Internet services 230. The 5GS / EPS may be interconnected with other access networks, but these entities / interfaces are not shown for simplicity. As shown, 5GS / EPS provides packet-switched services, however, those skilled in the art will readily appreciate that the various concepts presented throughout this application can be extended to networks providing circuit-switched services or other cellular networks. NG-RAN includes NR Node B (gNB) 203 and other gNBs 204. gNB 203 provides user and control plane protocol terminations toward UE 201. gNB 203 can be connected to other gNBs 204 via an Xn interface (e.g., backhaul). gNB 203 may also be referred to as a base station, a base transceiver station, a radio base station, a radio transceiver, a transceiver function, a basic service set (BSS), an extended service set (ESS), a TRP (transmitting receiving node), or some other suitable term. gNB 203 provides an access point to 5GC / EPC 210 for UE 201. Examples of UE 201 include a cellular phone, a smart phone, a Session Initiation Protocol (SIP) phone, a laptop computer, a personal digital assistant (PDA), a satellite radio, non-terrestrial base station communications, satellite mobile communications, a global positioning system, a multimedia device, a video device, a digital audio player (e.g., an MP3 player), a camera, a game console, a drone, an aircraft, a narrowband Internet of Things device, a machine type communication device, a land vehicle, an automobile, a wearable device, or any other similarly functional device.A person skilled in the art may also refer to UE201 as a mobile station, a subscriber station, a mobile unit, a subscriber unit, a wireless unit, a remote unit, a mobile device, a wireless device, a wireless communication device, a remote device, a mobile subscriber station, an access terminal, a mobile terminal, a wireless terminal, a remote terminal, a handset, a user agent, a mobile client, a client, or some other suitable term. gNB203 is connected to 5GC / EPC210 via an S1 / NG interface. 5GC / EPC210 includes MME (Mobility Management Entity) / AMF (Authentication Management Field) / SMF (Session Management Function) 211, other MME / AMF / SMF214, S-GW (Service Gateway) / UPF (User Plane Function) 212, and P-GW (Packet Data Network Gateway) / UPF213. MME / AMF / SMF211 is the control node that handles the signaling between UE201 and 5GC / EPC210. ​​In general, MME / AMF / SMF211 provides bearer and connection management. All user IP (Internet Protocal) packets are transmitted through S-GW / UPF212, which itself is connected to P-GW / UPF213. P-GW provides UE IP address allocation and other functions. P-GW / UPF213 is connected to Internet services 230. Internet services 230 include operator-corresponding Internet protocol services, which may specifically include Internet, intranet, IMS (IP Multimedia Subsystem) and packet switching streaming services.

[0235] As an embodiment, the UE201 corresponds to the first node in the present application.

[0236] As an embodiment, the UE 201 supports transmission in a non-terrestrial network (NTN).

[0237] As an embodiment, the UE201 supports transmission in a network with a large delay difference.

[0238] As an embodiment, the UE 201 supports transmission of a terrestrial network (TN).

[0239] As an embodiment, the UE201 is a user equipment (UE).

[0240] As an embodiment, the UE 201 is an aircraft.

[0241] As an embodiment, the UE201 is a vehicle-mounted terminal.

[0242] As an embodiment, the UE 201 is a relay.

[0243] As an embodiment, the UE 201 is a vessel.

[0244] As an embodiment, the UE201 is an Internet of Things terminal.

[0245] As an embodiment, the UE201 is an industrial Internet of Things terminal.

[0246] As an embodiment, the UE201 is a device supporting low-latency and high-reliability transmission.

[0247] As an embodiment, the gNB203 corresponds to the second node in this application.

[0248] As an embodiment, the gNB203 includes a main node.

[0249] As an embodiment, the gNB203 includes an auxiliary node.

[0250] As an embodiment, the gNB203 includes a base station device (Basestation, BS).

[0251] As an embodiment, the gNB203 includes user equipment.

[0252] As an embodiment, the gNB203 supports transmission in a non-terrestrial network (NTN).

[0253] As an embodiment, the gNB203 supports transmission in a network with large latency difference.

[0254] As an embodiment, the gNB203 supports transmission of the terrestrial network (TN).

[0255] As an embodiment, the gNB203 is a macro cellular base station.

[0256] As an embodiment, the gNB203 is a micro cell base station.

[0257] As an embodiment, the gNB203 is a pico cell base station.

[0258] As an embodiment, the gNB203 is a home base station (Femtocell).

[0259] As an embodiment, the gNB203 is a base station device that supports large delay difference.

[0260] As an embodiment, the gNB203 is a flying platform device.

[0261] As an embodiment, the gNB203 is a satellite device.

[0262] As an embodiment, the gNB203 is a UE (user equipment).

[0263] As an embodiment, the gNB203 is a gateway.

[0264] As an embodiment, the gNB203 is a base station device supporting NR.

[0265] As an embodiment, the gNB203 is a base station device supporting EUTRA.

[0266] As an embodiment, the gNB203 is a base station device supporting WLAN.

[0267] As an embodiment, the gNB203 is a base station device supporting BT.

[0268] Example 3

[0269] Embodiment 3 shows a schematic diagram of an embodiment of a wireless protocol architecture of a user plane and a control plane according to the present application, as shown in the attached Figure 3 shown. Figure 3 is a schematic diagram illustrating an embodiment of a radio protocol architecture for a user plane 350 and a control plane 300, Figure 3The radio protocol architecture for the control plane 300 is shown in three layers: Layer 1, Layer 2, and Layer 3. Layer 1 (L1 layer) is the lowest layer and implements various PHY (physical layer) signal processing functions. The L1 layer will be referred to as PHY 301 herein. Layer 2 (L2 layer) 305 is above PHY 301 and includes a MAC (Medium Access Control) sublayer 302, an RLC (Radio Link Control) sublayer 303, and a PDCP (Packet Data Convergence Protocol) sublayer 304. The PDCP sublayer 304 provides multiplexing between different radio bearers and logical channels. The PDCP sublayer 304 also provides security by encrypting data packets, and provides inter-zone mobility support. The RLC sublayer 303 provides segmentation and reassembly of upper layer data packets, retransmission of lost data packets, and reordering of data packets to compensate for out-of-order reception due to HARQ. The MAC sublayer 302 provides multiplexing between logical and transport channels. The MAC sublayer 302 is also responsible for allocating various radio resources (e.g., resource blocks) in a cell. The MAC sublayer 302 is also responsible for HARQ operations. The RRC (Radio Resource Control) sublayer 306 in layer 3 (L3 layer) in the control plane 300 is responsible for obtaining radio resources (i.e., radio bearers) and using RRC signaling to configure lower layers. The radio protocol architecture of the user plane 350 includes layer 1 (L1 layer) and layer 2 (L2 layer). In the user plane 350, the radio protocol architecture is substantially the same as the corresponding layers and sublayers in the control plane 300 for the physical layer 351, the PDCP sublayer 354 in the L2 layer 355, the RLC sublayer 353 in the L2 layer 355, and the MAC sublayer 352 in the L2 layer 355, but the PDCP sublayer 354 also provides header compression for upper layer data packets to reduce radio transmission overhead. The L2 layer 355 in the user plane 350 also includes a SDAP (Service Data Adaptation Protocol) sublayer 356. The SDAP sublayer 356 is responsible for mapping between QoS flows and data radio bearers (DRBs) to support service diversity.

[0270] As an example, Figure 3 The wireless protocol architecture in is applicable to the first node in this application.

[0271] As an example, Figure 3 The wireless protocol architecture in is applicable to the second node in this application.

[0272] As an embodiment, the first signaling in the present application is generated in the RRC306.

[0273] Example 4

[0274] Embodiment 4 shows a schematic diagram of a first communication device and a second communication device according to the present application, as shown in the attached figure. Figure 4 shown. Figure 4 is a block diagram of a first communication device 450 and a second communication device 410 communicating with each other in an access network.

[0275] The first communication device 450 includes a controller / processor 459, a memory 460, a data source 467, a transmit processor 468, a receive processor 456, a multi-antenna transmit processor 457, a multi-antenna receive processor 458, a transmitter / receiver 454 and an antenna 452.

[0276] The second communication device 410 includes a controller / processor 475 , a memory 476 , a receive processor 470 , a transmit processor 416 , a multi-antenna receive processor 472 , a multi-antenna transmit processor 471 , a transmitter / receiver 418 and an antenna 420 .

[0277] In transmission from the second communication device 410 to the first communication device 450, at the second communication device 410, upper layer data packets from the core network are provided to the controller / processor 475. The controller / processor 475 implements the functionality of the L2 layer. In transmission from the second communication device 410 to the first communication device 450, the controller / processor 475 provides header compression, encryption, packet segmentation and reordering, multiplexing between logical and transport channels, and radio resource allocation to the first communication device 450 based on various priority metrics. The controller / processor 475 is also responsible for retransmission of lost packets and signaling to the first communication device 450. The transmit processor 416 and the multi-antenna transmit processor 471 implement various signal processing functions for the L1 layer (i.e., the physical layer). The transmit processor 416 implements coding and interleaving to facilitate forward error correction (FEC) at the second communication device 410, as well as mapping of signal constellations based on various modulation schemes (e.g., binary phase shift keying (BPSK), quadrature phase shift keying (QPSK), M-phase shift keying (M-PSK), M-quadrature amplitude modulation (M-QAM)). The multi-antenna transmit processor 471 performs digital spatial precoding, including codebook-based precoding and non-codebook-based precoding, and beamforming processing on the coded and modulated symbols to generate one or more spatial streams. The transmit processor 416 then maps each spatial stream to a subcarrier, multiplexes it with a reference signal (e.g., a pilot) in the time domain and / or frequency domain, and then uses an inverse fast Fourier transform (IFFT) to generate a physical channel carrying a time-domain multi-carrier symbol stream. The multi-antenna transmit processor 471 then performs a transmit analog precoding / beamforming operation on the time-domain multi-carrier symbol stream. Each transmitter 418 converts the baseband multi-carrier symbol stream provided by the multi-antenna transmit processor 471 into a radio frequency stream, and then provides it to a different antenna 420.

[0278] In the transmission from the second communication device 410 to the first communication device 450, at the first communication device 450, each receiver 454 receives a signal through its corresponding antenna 452. Each receiver 454 recovers the information modulated onto the RF carrier and converts the RF stream into a baseband multi-carrier symbol stream and provides it to the receiving processor 456. The receiving processor 456 and the multi-antenna receiving processor 458 implement various signal processing functions of the L1 layer. The multi-antenna receiving processor 458 performs a receiving analog precoding / beamforming operation on the baseband multi-carrier symbol stream from the receiver 454. The receiving processor 456 uses a fast Fourier transform (FFT) to convert the baseband multi-carrier symbol stream after the receiving analog precoding / beamforming operation from the time domain to the frequency domain. In the frequency domain, the physical layer data signal and the reference signal are demultiplexed by the receiving processor 456, wherein the reference signal will be used for channel estimation, and the data signal is recovered after multi-antenna detection in the multi-antenna receiving processor 458 to any spatial stream destined for the first communication device 450. The symbols on each spatial stream are demodulated and recovered in the receiving processor 456, and soft decisions are generated. The receiving processor 456 then decodes and deinterleaves the soft decisions to recover the upper layer data and control signals transmitted by the second communication device 410 on the physical channel. The upper layer data and control signals are then provided to the controller / processor 459. The controller / processor 459 implements the functions of the L2 layer. The controller / processor 459 may be associated with a memory 460 that stores program codes and data. The memory 460 may be referred to as a computer-readable medium. In the transmission from the second communication device 410 to the second communication device 450, the controller / processor 459 provides multiplexing between transport and logical channels, packet reassembly, decryption, header decompression, and control signal processing to recover the upper layer data packets from the core network. The upper layer data packets are then provided to all protocol layers above the L2 layer. Various control signals may also be provided to L3 for L3 processing.

[0279] In the transmission from the first communication device 450 to the second communication device 410, at the first communication device 450, a data source 467 is used to provide upper layer data packets to the controller / processor 459. The data source 467 represents all protocol layers above the L2 layer. Similar to the transmission function at the second communication device 410 described in the transmission from the second communication device 410 to the first communication device 450, the controller / processor 459 implements header compression, encryption, packet segmentation and reordering, and multiplexing between logical and transport channels based on radio resource allocation, and implements L2 layer functions for user plane and control plane. The controller / processor 459 is also responsible for the retransmission of lost packets and signaling to the second communication device 410. The transmit processor 468 performs modulation mapping and channel coding processing, and the multi-antenna transmit processor 457 performs digital multi-antenna spatial precoding, including codebook-based precoding and non-codebook-based precoding, and beamforming processing. Then, the transmit processor 468 modulates the generated spatial stream into a multi-carrier / single-carrier symbol stream, which is then provided to different antennas 452 via the transmitter 454 after analog precoding / beamforming operations in the multi-antenna transmit processor 457. Each transmitter 454 first converts the baseband symbol stream provided by the multi-antenna transmit processor 457 into a radio frequency symbol stream, and then provides it to the antenna 452.

[0280] In the transmission from the first communication device 450 to the second communication device 410, the function at the second communication device 410 is similar to the reception function at the first communication device 450 described in the transmission from the second communication device 410 to the first communication device 450. Each receiver 418 receives a radio frequency signal through its corresponding antenna 420, converts the received radio frequency signal into a baseband signal, and provides the baseband signal to the multi-antenna reception processor 472 and the reception processor 470. The reception processor 470 and the multi-antenna reception processor 472 jointly implement the functions of the L1 layer. The controller / processor 475 implements the L2 layer functions. The controller / processor 475 can be associated with a memory 476 storing program codes and data. The memory 476 can be referred to as a computer-readable medium. In the transmission from the first communication device 450 to the second communication device 410, the controller / processor 475 provides multiplexing between transport and logical channels, packet reassembly, decryption, header decompression, control signal processing to recover the upper layer data packets from the UE 450. Upper layer packets from controller / processor 475 may be provided to the core network.

[0281] As an embodiment, the first communication device 450 includes: at least one processor and at least one memory, the at least one memory including computer program code; the at least one memory and the computer program code are configured to be used together with the at least one processor, and the first communication device 450 at least: receives a first signaling, the first signaling is used to determine the release of only one of the first logical channel group or the second logical channel group; wherein the first logical channel group includes at least one logical channel, and the second logical channel group includes at least one logical channel; data transmitted through the first logical channel group and data transmitted through the second logical channel group are associated with one PDCP entity.

[0282] As an embodiment, the first communication device 450 includes: a memory storing a computer-readable instruction program, wherein the computer-readable instruction program generates an action when executed by at least one processor, and the action includes: receiving a first signaling, wherein the first signaling is used to determine the release of only one of a first logical channel group or a second logical channel group; wherein the first logical channel group includes at least one logical channel, and the second logical channel group includes at least one logical channel; and data transmitted through the first logical channel group and data transmitted through the second logical channel group are associated with a PDCP entity.

[0283] As an embodiment, the second communication device 410 includes: at least one processor and at least one memory, the at least one memory including computer program code; the at least one memory and the computer program code are configured to be used together with the at least one processor. The second communication device 410 at least: sends a first signaling, the first signaling is used to determine the release of only one of the first logical channel group or the second logical channel group; wherein the first logical channel group includes at least one logical channel, and the second logical channel group includes at least one logical channel; data transmitted through the first logical channel group and data transmitted through the second logical channel group are associated with one PDCP entity.

[0284] As an embodiment, the second communication device 410 includes: a memory storing a computer-readable instruction program, wherein the computer-readable instruction program generates an action when executed by at least one processor, and the action includes: sending a first signaling, wherein the first signaling is used to determine the release of only one of the first logical channel group or the second logical channel group; wherein the first logical channel group includes at least one logical channel, and the second logical channel group includes at least one logical channel; and data transmitted through the first logical channel group and data transmitted through the second logical channel group are associated with one PDCP entity.

[0285] As an embodiment, the antenna 452, the receiver 454, the receiving processor 456, and the controller / processor 459 are used to receive the first signaling; and at least one of the antenna 420, the transmitter 418, the transmitting processor 416, and the controller / processor 475 is used to send the first signaling.

[0286] As an implementation, the antenna 452, the transmitter 454, the transmit processor 468, and the controller / processor 459 are used to send a first signaling; and at least one of the antenna 420, the receiver 418, the receive processor 470, and the controller / processor 475 is used to receive a first signaling.

[0287] As an embodiment, the first communication device 450 corresponds to the first node in this application.

[0288] As an embodiment, the second communication device 410 corresponds to the second node in this application.

[0289] As an embodiment, the first communication device 450 is a user equipment.

[0290] As an embodiment, the first communication device 450 is a user equipment supporting a large delay difference.

[0291] As an embodiment, the first communication device 450 is a user equipment supporting NTN.

[0292] As an embodiment, the first communication device 450 is an aircraft device.

[0293] As an embodiment, the first communication device 450 has a positioning capability.

[0294] As an embodiment, the first communication device 450 does not have a fixed energy capability.

[0295] As an embodiment, the first communication device 450 is a user equipment supporting TN.

[0296] As an embodiment, the second communication device 410 is a base station device (gNB / eNB / ng-eNB).

[0297] As an embodiment, the second communication device 410 is a base station device supporting a large delay difference.

[0298] As an embodiment, the second communication device 410 is a base station device supporting NTN.

[0299] As an embodiment, the second communication device 410 is a satellite device.

[0300] As an embodiment, the second communication device 410 is a flying platform device.

[0301] As an embodiment, the second communication device 410 is a base station device supporting TN.

[0302] As an embodiment, the second communication device 410 is a user equipment.

[0303] Example 5

[0304] Embodiment 5 illustrates a wireless signal transmission flow chart according to an embodiment of the present application, as shown in the attached Figure 5 It is particularly noted that the order in this example does not limit the signal transmission order and implementation order in this application.

[0305] for First node U01 In step S5101, a first signaling is received. When the first signaling is identified by a non-unicast RNTI, the first logical channel group is released; when the first signaling is identified by a unicast RNTI, the first logical channel group is retained.

[0306] for Second node N02 , in step S5201, sending a first signaling;

[0307] In Embodiment 5, the first logical channel group includes at least one logical channel, and the second logical channel group includes at least one logical channel; data transmitted through the first logical channel group and data transmitted through the second logical channel group are associated with one PDCP entity.

[0308] As an embodiment, it is determined whether the first logical channel group is released or retained according to whether the first signaling is identified by a non-unicast RNTI or a unicast RNTI.

[0309] As an embodiment, it is determined whether the first logical channel group is released or retained according to whether the first signaling is identified by a unicast RNTI.

[0310] As an embodiment, whether the first logical channel group is released or retained is determined according to whether the first signaling is identified by a non-unicast RNTI.

[0311] As an embodiment, whether the first logical channel group is released or retained is related to whether the first signaling is identified by a non-unicast RNTI or a unicast RNTI.

[0312] As an embodiment, whether the first logical channel group is released or retained is related to whether the first signaling is identified by a non-unicast RNTI.

[0313] As an embodiment, whether the first logical channel group is released or retained is related to whether the first signaling is identified by a unicast RNTI.

[0314] As an embodiment, the phrase that the first signaling is identified by a non-unicast RNTI includes: a physical layer channel occupied by the first signaling transmission is identified by a non-unicast RNTI.

[0315] As an embodiment, the phrase "the physical layer channel occupied by the first signaling transmission is identified by a non-unicast RNTI" includes: the non-unicast RNTI is used for CRC (Cyclic Redundancy Check) scrambling of the physical layer channel occupied by the first signaling transmission.

[0316] As an embodiment, the phrase "the physical layer channel occupied by the first signaling transmission is identified by a non-unicast RNTI" includes: the non-unicast RNTI is used to generate the RS (Random Sequence) of the DMRS (DeModulation Reference Signal) of the physical layer channel occupied by the first signaling transmission.

[0317] As an embodiment, the phrase that the first signaling is identified by a non-unicast RNTI includes: the scheduling signaling of the first signaling on the air interface is identified by a non-unicast RNTI.

[0318] As an embodiment, the phrase that the scheduling signaling of the first signaling on the air interface is identified by a non-unicast RNTI includes: determining whether the scheduling signaling of the first signaling on the air interface exists according to the non-unicast RNTI.

[0319] As an embodiment, the phrase that the first signaling is identified by a non-unicast RNTI in the scheduling signaling of the air interface includes: determining the time-frequency resources occupied by the first signaling transmission according to the non-unicast RNTI.

[0320] As an embodiment, the phrase that the scheduling signaling of the first signaling on the air interface is identified by a non-unicast RNTI includes: the non-unicast RNTI is used for CRC scrambling of the scheduling signaling of the first signaling on the air interface.

[0321] As an embodiment, the phrase that the first signaling is identified by a unicast RNTI includes: a physical layer channel occupied by the first signaling transmission is identified by a unicast RNTI.

[0322] As an embodiment, the phrase "the physical layer channel occupied by the first signaling transmission is identified by a unicast RNTI" includes: the unicast RNTI is used for CRC scrambling of the physical layer channel occupied by the first signaling transmission.

[0323] As an embodiment, the phrase "the physical layer channel occupied by the first signaling transmission is identified by a unicast RNTI" includes: the unicast RNTI is used to generate an RS sequence of a DMRS of the physical layer channel occupied by the first signaling transmission.

[0324] As an embodiment, the phrase that the first signaling is identified by a unicast RNTI includes: the scheduling signaling of the first signaling on the air interface is identified by a unicast RNTI.

[0325] As an embodiment, the phrase that the scheduling signaling of the first signaling on the air interface is identified by the unicast RNTI includes: determining whether the scheduling signaling of the first signaling on the air interface exists according to the unicast RNTI.

[0326] As an embodiment, the phrase that the first signaling is identified by a unicast RNTI in the scheduling signaling of the air interface includes: determining the time and frequency resources occupied by the first signaling transmission according to the unicast RNTI.

[0327] As an embodiment, the phrase that the scheduling signaling of the first signaling on the air interface is identified by the unicast RNTI includes: the unicast RNTI is used for CRC scrambling of the scheduling signaling of the first signaling on the air interface.

[0328] As an embodiment, the behavior that the first logical channel group is released includes: the configuration of the first logical channel group is released.

[0329] As an embodiment, the behavior that the first logical channel group is released includes: at least one logical channel in the first logical channel group is released.

[0330] As an embodiment, the behavior that the first logical channel group is released includes: the configuration of at least one logical channel in the first logical channel group is released.

[0331] As an embodiment, the behavior that the first logical channel group is released includes: any logical channel in the first logical channel group is released.

[0332] As an embodiment, the behavior that the first logical channel group is released includes: the configuration of any logical channel in the first logical channel group is released.

[0333] As an embodiment, the behavior that the first logical channel group is released includes: all logical channels in the first logical channel group are released.

[0334] As an embodiment, the behavior that the first logical channel group is released includes: the configuration of all logical channels in the first logical channel group is released.

[0335] As an embodiment, the behavior that the first logical channel group is released includes: stopping receiving data transmitted through the first logical channel group.

[0336] As an embodiment, the behavior that the first logical channel group is released includes: stopping monitoring the scheduling signaling of the data transmitted through the first logical channel group on the air interface.

[0337] As an embodiment, the behavior that the first logical channel group is released includes: the configuration of the radio bearer to which the first logical channel group belongs is released.

[0338] As an embodiment, the behavior that the first logical channel group is released includes: the radio bearer to which the first logical channel group belongs is released.

[0339] As a sub-embodiment of the above embodiment, the behavior that the radio bearer to which the first logical channel group belongs is released includes: the PDCP entity of the radio bearer to which the first logical channel group belongs is released.

[0340] As a sub-embodiment of the above embodiment, the behavior that the radio bearer to which the first logical channel group belongs is released includes: the RLC entity of the radio bearer to which the first logical channel group belongs is released.

[0341] As a sub-embodiment of the above embodiment, the behavior that the radio bearer to which the first logical channel group belongs is released includes: a logical channel corresponding to the RLC entity of the radio bearer to which the first logical channel group belongs is released.

[0342] As an embodiment, the behavior that the first logical channel group is retained includes: the configuration of the first logical channel group is retained.

[0343] As an embodiment, the behavior that the first logical channel group is retained includes: the configuration of any logical channel in the first logical channel group is retained.

[0344] As an embodiment, the benefits of the above method include: the first logical channel group can be quickly activated subsequently by utilizing the configuration of the reserved first logical channel group, thereby reducing signaling overhead.

[0345] As an embodiment, the behavior that the first logical channel group is retained includes: the configuration of the radio bearer to which the first logical channel group belongs is retained.

[0346] As an embodiment, the behavior that the first logical channel group is retained includes: the configuration of the radio bearer to which the first logical channel group belongs is retained.

[0347] As an embodiment, the behavior that the first logical channel group is reserved includes: the radio bearer to which the first logical channel group belongs is reserved.

[0348] As an embodiment, the benefits of the above method include: the radio bearer to which the first logical channel group belongs can be quickly activated by using the configuration of the radio bearer to which the first logical channel group belongs, thereby reducing signaling overhead.

[0349] As an embodiment, the configuration of the first logical channel group includes at least one of a BSR (Buffer Status Report) configuration or a logical channel group identity.

[0350] As an embodiment, the logical channel group identity described in the present application is a non-negative integer.

[0351] As an embodiment, the logical channel group identity described in this application is no greater than 64.

[0352] As an embodiment, the logical channel group identity described in this application is no more than 10,000.

[0353] As an embodiment, the configuration of any logical channel in the first logical channel group includes at least one of the identity of the logical channel, priority, SR (Scheduling Request) identity, or logical channel group identity.

[0354] As an embodiment, the configuration of the radio bearer to which the first logical channel group belongs includes at least one of a radio bearer identity, a PDCP entity configuration, a SDAP entity configuration, an RLC entity configuration, or a logical channel configuration.

[0355] As an embodiment, the configuration of the radio bearer to which the first logical channel group belongs includes at least one of a radio bearer identity, a PDCP configuration, a SDAP configuration, an RLC bearer configuration, or a MAC configuration.

[0356] As an embodiment, in response to receiving the first signaling, the scheduling signaling of using the non-unicast RNTI to monitor the data transmitted through the first logical channel group on the air interface is stopped.

[0357] As an embodiment, the non-unicast RNTI used for monitoring the scheduling signaling of the first signaling on the air interface is different from the non-unicast RNTI used for monitoring the scheduling signaling of the data transmitted through the first logical channel group on the air interface.

[0358] As an embodiment, the non-unicast RNTI used for monitoring the scheduling signaling of the first signaling on the air interface is the same as the non-unicast RNTI used for monitoring the scheduling signaling of the data transmitted through the first logical channel group on the air interface.

[0359] As an embodiment, in response to receiving the first signaling, the use of the non-unicast RNTI to monitor data transmitted through the first logical channel group is stopped.

[0360] As an embodiment, in response to receiving the first signaling, the scheduling signaling of the air interface for monitoring data transmitted through the second logical channel group using the unicast RNTI is started.

[0361] As an embodiment, in response to receiving the first signaling, start monitoring data transmitted through the second logical channel group using the unicast RNTI.

[0362] As an embodiment, the first signaling includes a first domain.

[0363] As a sub-embodiment of the above embodiment, the first domain indicates the identity of the first logical channel group.

[0364] As a sub-embodiment of the above embodiment, the first domain indicates the identity of any logical channel in the first logical channel group.

[0365] As a sub-embodiment of the above embodiment, the first domain indicates the identity of at least one logical channel in the first logical channel group.

[0366] As a sub-embodiment of the above embodiment, the first domain indicates the identity of the radio bearer to which the first logical channel group belongs.

[0367] As an embodiment, the identity of the first logical channel group is a non-negative integer.

[0368] As a sub-embodiment of the above embodiment, the identity of the first logical channel group is no more than 64.

[0369] As a sub-embodiment of the above embodiment, the identity of the first logical channel group is no more than 10,000.

[0370] As an embodiment, the identity of any logical channel in the first logical channel group is a non-negative integer.

[0371] As a sub-embodiment of the above embodiment, the identity of any logical channel in the first logical channel group is no more than 64.

[0372] As a sub-embodiment of the above embodiment, the identity of any logical channel in the first logical channel group is no more than 10,000.

[0373] As an embodiment, the identity of the radio bearer to which the first logical channel group belongs is a non-negative integer.

[0374] As a sub-embodiment of the above embodiment, the identity of the radio bearer to which the first logical channel group belongs is no more than 64.

[0375] As a sub-embodiment of the above embodiment, the identity of the radio bearer to which the first logical channel group belongs is no more than 10,000.

[0376] Example 6

[0377] Embodiment 6 illustrates a wireless signal transmission flow chart according to another embodiment of the present application, as shown in the attached Figure 5 It is particularly noted that the order in this example does not limit the signal transmission order and implementation order in this application.

[0378] for First node U01 , receiving a first signaling in step S6101, wherein the first signaling indicates a first threshold, and the first threshold is used to determine the release of the second logical channel group; and sending a first control information in step S6102, wherein the first control information indicates that the second logical channel group is released.

[0379] for Second node N02 , sending a first signaling in step S6201; receiving a first control information in step S6202;

[0380] In Embodiment 6, the first logical channel group includes at least one logical channel, and the second logical channel group includes at least one logical channel; data transmitted through the first logical channel group and data transmitted through the second logical channel group are associated with one PDCP entity.

[0381] As an embodiment, the behavior that the second logical channel group is released includes: the configuration of the second logical channel group is released.

[0382] As an embodiment, the behavior that the second logical channel group is released includes: at least one logical channel in the second logical channel group is released.

[0383] As an embodiment, the behavior that the second logical channel group is released includes: the configuration of at least one logical channel in the second logical channel group is released.

[0384] As an embodiment, the behavior that the second logical channel group is released includes: any logical channel in the second logical channel group is released.

[0385] As an embodiment, the behavior that the second logical channel group is released includes: the configuration of any logical channel in the second logical channel group is released.

[0386] As an embodiment, the behavior that the second logical channel group is released includes: all logical channels in the second logical channel group are released.

[0387] As an embodiment, the behavior that the second logical channel group is released includes: the configuration of all logical channels in the second logical channel group is released.

[0388] As an embodiment, the behavior that the second logical channel group is released includes: stopping receiving data transmitted through the second logical channel group.

[0389] As an embodiment, the behavior that the second logical channel group is released includes: stopping monitoring data transmitted through the second logical channel group.

[0390] As an embodiment, the behavior that the second logical channel group is released includes: stopping monitoring the scheduling signaling of the data transmitted through the second logical channel group on the air interface.

[0391] As an embodiment, the behavior that the second logical channel group is released includes: the configuration of the radio bearer to which the second logical channel group belongs is released.

[0392] As an embodiment, the behavior that the second logical channel group is released includes: the radio bearer to which the second logical channel group belongs is released.

[0393] As a sub-embodiment of the above embodiment, the behavior that the radio bearer to which the second logical channel group belongs is released includes: the PDCP entity of the radio bearer to which the second logical channel group belongs is released.

[0394] As a sub-embodiment of the above embodiment, the behavior that the radio bearer to which the second logical channel group belongs is released includes: the RLC entity of the radio bearer to which the second logical channel group belongs is released.

[0395] As a sub-embodiment of the above embodiment, the behavior that the radio bearer to which the second logical channel group belongs is released includes: the logical channel corresponding to the RLC entity of the radio bearer to which the second logical channel group belongs is released.

[0396] As a sub-embodiment of the above embodiment, the behavior that the radio bearer to which the second logical channel group belongs is released includes: the logical channel of the radio bearer to which the second logical channel group belongs is released.

[0397] As an embodiment, the phrase that the first threshold is used to determine the release of the second logical channel group includes: when the second sequence number is greater than or equal to the first threshold, the second logical channel group is released.

[0398] As an embodiment, the phrase that the first threshold is used to determine the release of the second logical channel group includes: when the second sequence number is greater than the first threshold, the second logical channel group is released.

[0399] As an embodiment, the phrase that the first threshold is used to determine the release of the second logical channel group includes: when the second sequence number is equal to the first threshold, the second logical channel group is released.

[0400] As an embodiment, the phrase that the first threshold is used to determine the release of the second logical channel group includes: when the second sequence number is less than the first threshold, the second logical channel group is released.

[0401] As an embodiment, the phrase "the first threshold is used to determine the release of the second logical channel group" includes: when the difference between the second sequence number and the first sequence number is less than the first threshold, the second logical channel group is released.

[0402] As a sub-embodiment of the above embodiment, the difference between the second sequence number and the first sequence number of the phrase includes: the absolute value of the difference between the second sequence number and the first requirement.

[0403] As a sub-embodiment of the above embodiment, the difference between the second sequence number and the first sequence number is equal to the second sequence number minus the first sequence number.

[0404] As a sub-embodiment of the above embodiment, the difference between the second sequence number and the first sequence number is equal to the first sequence number minus the second sequence number.

[0405] As an embodiment, in the present application, the second sequence number includes: the sequence number of the first type of data packet occupied by the data transmitted through the second logical channel.

[0406] As a sub-embodiment of the above embodiment, the first type of data packets are successfully received.

[0407] As a sub-embodiment of the above embodiment, the first type of data packets are correctly received.

[0408] As a sub-embodiment of the above embodiment, the first category of data packets are within a receiving window, and the receiving window belongs to a protocol layer to which the first category of data packets belong.

[0409] As a sub-embodiment of the above embodiment, the first category data packet is a first category data packet with the largest sequence number among all first category data packets occupied by data transmitted through the second logical channel group.

[0410] As a sub-embodiment of the above embodiment, the first category data packet is the first category data packet with the smallest sequence number among all first category data packets occupied by data transmitted through the second logical channel group.

[0411] As an embodiment, the sequence number of the first type of data packet includes: SN (Sequence Number).

[0412] As an embodiment, the sequence number of the first type of data packet includes: HFN (Hyper-Frame Number).

[0413] As an embodiment, the sequence number of the first type of data packet includes: a COUNT value.

[0414] As an embodiment, the COUNT value consists of SN and HFN.

[0415] As an embodiment, in the present application, the first sequence number includes: the sequence number of the first type of data packet occupied by the data transmitted through the first logical channel group.

[0416] As a sub-embodiment of the above embodiment, the first type of data packets are successfully received.

[0417] As a sub-embodiment of the above embodiment, the first type of data packets are correctly received.

[0418] As a sub-embodiment of the above embodiment, the first category of data packets are within a receiving window, and the receiving window belongs to a protocol layer to which the first category of data packets belong.

[0419] As a sub-embodiment of the above embodiment, the first category data packet is a first category data packet with the largest sequence number among all first category data packets occupied by data transmitted through the first logical channel.

[0420] As a sub-embodiment of the above embodiment, the first category data packet is the first category data packet with the smallest sequence number among all first category data packets occupied by data transmitted through the first logical channel.

[0421] As an embodiment, the sequence number of the first type of data packet includes: SN (Sequence Number).

[0422] As an embodiment, the sequence number of the first type of data packet includes: HFN (Hyper-Frame Number).

[0423] As an embodiment, the sequence number of the first type of data packet includes: a COUNT value.

[0424] As an embodiment, the COUNT value consists of SN and HFN.

[0425] As an embodiment, the phrase "the first threshold" is used to determine the release of the second logical channel group, including: as a response to receiving the first signaling, a first timer is started; when the first timer times out, the second logical channel group is released.

[0426] As an embodiment, the behavior that the first timer is started includes: the first timer is set to the first threshold.

[0427] As an embodiment, the behavior that the first timer is started includes: the first timer is set to 0.

[0428] As an embodiment, the phrase the first timer times out includes: the value of the first timer is equal to the first threshold.

[0429] As an embodiment, the phrase "the first timer times out" includes: the value of the first timer is greater than the first threshold.

[0430] As an embodiment, the benefits of the above method include: there is no need to indicate the release of the second logical channel group through another signaling, which can reduce signaling overhead.

[0431] As an embodiment, the first control information is sent via a first control PDU, and the first control PDU indicates the first control information.

[0432] As an embodiment, the protocol layer to which the first control PDU belongs includes a PDCP layer

[0433] As an embodiment, the protocol layer to which the first control PDU belongs includes the RLC layer.

[0434] As an embodiment, the protocol layer to which the first control PDU belongs includes the SDAP layer.

[0435] As an embodiment, the first control information is sent via second signaling.

[0436] As an embodiment, the second signaling includes MAC CE (Control Element).

[0437] As an embodiment, the second signaling includes RRC signaling.

[0438] As an embodiment, the second signaling includes all or part of the RRCReconfiguration message.

[0439] As an embodiment, the second signaling includes all or part of the RRCConnectionReconfiguration message.

[0440] As an embodiment, the second signaling includes an RRC (Radio Resource Control) message.

[0441] As an embodiment, the second signaling includes all or part of an IE (Information Element) in an RRC message.

[0442] As an embodiment, the second signaling includes all or part of a field in an IE in an RRC message.

[0443] As an embodiment, the second signaling includes higher layer signaling.

[0444] As an embodiment, the second signaling includes DCI.

[0445] As an embodiment, the second signaling includes physical layer signaling.

[0446] As an embodiment, the second signaling is transmitted on PUSCH (Physical Uplink Shared Channel).

[0447] As an embodiment, the second signaling is transmitted on PUCCH (Physical Uplink Control Channel).

[0448] As an embodiment, the second signaling is transmitted on the PSSCH.

[0449] As an embodiment, the benefits of the above method include: ensuring lossless transmission of broadcast / multicast data on the air interface during the conversion process between the PTP and PTM transmission modes.

[0450] As an embodiment, the first control information is transmitted through a logical channel group other than the first logical channel group and the second logical channel group.

[0451] As an embodiment, the first control information is transmitted via a radio bearer other than the radio bearer to which the first logical channel group belongs and the radio bearer to which the second logical channel group belongs.

[0452] As an embodiment, the benefits of the above method include: the receiver of the second signaling can release the resources corresponding to the second logical channel group, thereby improving resource utilization.

[0453] As an embodiment, the benefits of the above method include: releasing redundant wireless bearers and reducing energy consumption.

[0454] As an embodiment, the first control information includes a second field.

[0455] As a sub-embodiment of the above embodiment, the second domain indicates the identity of the second logical channel group.

[0456] As a sub-embodiment of the above embodiment, the second field indicates the identity of any logical channel in the second logical channel group.

[0457] As a sub-embodiment of the above embodiment, the second field indicates the identity of at least one logical channel in the second logical channel group.

[0458] As a sub-embodiment of the above embodiment, the second person field indicates an identity of a radio bearer to which the second logical channel group belongs.

[0459] As an embodiment, the dashed box F1 is optional.

[0460] As an example, a dashed box F1 exists.

[0461] As an embodiment, the dashed box F1 does not exist.

[0462] Example 7

[0463] Embodiment 7 illustrates a structural block diagram of a processing device used in a first node according to an embodiment of the present application; Figure 7 As shown in the attached Figure 7 In the embodiment, the processing device 700 in the first node includes a first receiver 701, a first transceiver 702 and a first transmitter 703.

[0464] A first receiver 701 receives a first signaling, where the first signaling is used to determine the release of only one of the first logical channel group or the second logical channel group;

[0465] In Embodiment 7, the first logical channel group includes at least one logical channel, and the second logical channel group includes at least one logical channel; data transmitted through the first logical channel group and data transmitted through the second logical channel group are associated with one PDCP entity.

[0466] As an embodiment, the first signaling includes all or part of the RRCReconfiguration message.

[0467] As an embodiment, the first signaling includes all or part of the RRCConnectionReconfiguration message.

[0468] As an embodiment, the first signaling includes an RRC (Radio Resource Control) message.

[0469] As an embodiment, the phrase said first signaling is used to determine the release of only one of the first logical channel group or the second logical channel group, including: as a response to receiving the first signaling, stop monitoring the scheduling signaling of the data transmitted through the first logical channel group on the air interface.

[0470] As an embodiment, the phrase said first signaling is used to determine the release of only one of the first logical channel group or the second logical channel group, including: as a response to receiving the first signaling, stop monitoring the scheduling signaling of the data transmitted through the second logical channel group on the air interface.

[0471] As an embodiment, the phrase said first signaling is used to determine the release of only one of the first logical channel group or the second logical channel group, including: as a response to receiving the first signaling, stop monitoring the scheduling signaling of the data transmitted through the first logical channel group on the air interface.

[0472] As an embodiment, the phrase said first signaling is used to determine the release of only one of the first logical channel group or the second logical channel group, including: as a response to receiving the first signaling, stop monitoring the scheduling signaling of the data transmitted through the second logical channel group on the air interface.

[0473] As an embodiment, the phrase "the first signaling" is used to determine the release of only one of the first logical channel group or the second logical channel group, including: when the first signaling is identified by a non-unicast RNTI, the first logical channel group is released; when the first signaling is identified by a unicast RNTI, the first logical channel group is retained.

[0474] As an embodiment, the phrase that the first signaling is used to determine the release of only one of the first logical channel group or the second logical channel group includes: the first signaling indicates a first threshold, and the first threshold is used to determine the release of the second logical channel group.

[0475] The first transmitter 703 sends first control information.

[0476] As an embodiment, the first control information is sent via a first control PDU, and the first control PDU indicates the first control information.

[0477] As an embodiment, the protocol layer to which the first control PDU belongs includes a PDCP layer

[0478] As an embodiment, the protocol layer to which the first control PDU belongs includes the RLC layer.

[0479] As an embodiment, the first control information is sent via second signaling.

[0480] As an embodiment, the second signaling includes all or part of an IE (Information Element) in an RRC message.

[0481] As an embodiment, the second signaling includes all or part of a field in an IE in an RRC message.

[0482] As an embodiment, the second signaling includes higher layer signaling.

[0483] As an embodiment, the first receiver 701 includes the attached Figure 4 Antenna 452, receiver 454, multi-antenna reception processor 458, reception processor 456, controller / processor 457, memory 460 and data source 467.

[0484] As an embodiment, the first receiver 701 includes the attached Figure 4 Antenna 452, receiver 454, multi-antenna receive processor 458, and receive processor 456.

[0485] As an embodiment, the first receiver 701 includes the attached Figure 4 Antenna 452, receiver 454, and receive processor 456.

[0486] As an embodiment, the first transceiver 702 includes Figure 4Antenna 452, receiver 454, multi-antenna receive processor 458, receive processor 456, controller / processor 457, memory 460 and data source 467, transmitter 454, multi-antenna transmit processor 457, transmit processor 468.

[0487] As an embodiment, the first transceiver 702 includes Figure 4 Antenna 452, receiver 454, multi-antenna receive processor 458, receive processor 456, transmitter 454, multi-antenna transmit processor 457, transmit processor 468.

[0488] As an embodiment, the first transceiver 702 includes Figure 4 Antenna 452, receiver 454, receive processor 456, transmitter 454, transmit processor 468.

[0489] As an embodiment, the first transmitter 703 includes the attached Figure 4 Antenna 452, transmitter 454, multi-antenna transmit processor 457, transmit processor 468, controller / processor 459, memory 460 and data source 467.

[0490] As an embodiment, the first transmitter 703 includes the attached Figure 4 Antenna 452, transmitter 454, multi-antenna transmit processor 457, and transmit processor 468.

[0491] As an embodiment, the first transmitter 703 includes the attached Figure 4 Antenna 452, transmitter 454, and transmit processor 468.

[0492] Example 8

[0493] Embodiment 8 illustrates a structural block diagram of a processing device for a second node according to an embodiment of the present application; Figure 8 As shown in the attached Figure 8 In the embodiment, the processing device 800 in the second node includes a second transmitter 801, a second transceiver 802 and a second receiver 803.

[0494] The second transmitter 801 sends a first signaling, where the first signaling is used to determine the release of only one of the first logical channel group or the second logical channel group;

[0495] In Embodiment 8, the first logical channel group includes at least one logical channel, and the second logical channel group includes at least one logical channel; data transmitted through the first logical channel group and data transmitted through the second logical channel group are associated with one PDCP entity.

[0496] The second receiver 803 receives the first control information.

[0497] As an embodiment, the second transmitter 801 includes the attached Figure 4 Antenna 420, transmitter 418, multi-antenna transmit processor 471, transmit processor 416, controller / processor 475, and memory 476.

[0498] As an embodiment, the second transmitter 801 includes the attached Figure 4 Antenna 420, transmitter 418, multi-antenna transmit processor 471, and transmit processor 416.

[0499] As an embodiment, the second transmitter 801 includes the attached Figure 4 Antenna 420, transmitter 418, and transmit processor 416.

[0500] As an embodiment, the second transceiver 802 includes the attached Figure 4 Antenna 420, transmitter 418, multi-antenna transmit processor 471, transmit processor 416, controller / processor 475, memory 476, receiver 418, multi-antenna receive processor 472, receive processor 470, and memory 476.

[0501] As an embodiment, the second transceiver 802 includes the attached Figure 4 Antenna 420, transmitter 418, multi-antenna transmit processor 471, transmit processor 416, receiver 418, multi-antenna receive processor 472, receive processor 470.

[0502] As an embodiment, the second transceiver 802 includes the attached Figure 4 Antenna 420, transmitter 418, transmit processor 416, receiver 418, receive processor 470.

[0503] As an embodiment, the second receiver 803 includes the attached Figure 4 Antenna 420, receiver 418, multi-antenna reception processor 472, reception processor 470, controller / processor 475, and memory 476.

[0504] As an embodiment, the second receiver 803 includes the attached Figure 4Antenna 420, receiver 418, multi-antenna receive processor 472, receive processor 470.

[0505] As an embodiment, the second receiver 803 includes the attached Figure 4 Antenna 420, receiver 418, and receive processor 470.

[0506] A person of ordinary skill in the art can understand that all or part of the steps in the above method can be completed by instructing the relevant hardware through a program, and the program can be stored in a computer-readable storage medium, such as a read-only memory, a hard disk or an optical disk. Optionally, all or part of the steps in the above embodiment can also be implemented using one or more integrated circuits. Accordingly, each module unit in the above embodiment can be implemented in the form of hardware or in the form of a software function module, and the present application is not limited to any specific form of software and hardware combination. The user equipment, terminal and UE in the present application include but are not limited to drones, communication modules on drones, remote-controlled aircraft, aircraft, small aircraft, mobile phones, tablet computers, notebooks, vehicle-mounted communication equipment, wireless sensors, Internet cards, Internet of Things terminals, RFID terminals, NB-IOT terminals, MTC (Machine Type Communication, Machine Type Communication) terminals, eMTC (enhanced MTC, enhanced MTC) terminals, data cards, Internet cards, vehicle-mounted communication equipment, low-cost mobile phones, low-cost tablet computers and other wireless communication devices. The base stations or system devices in this application include but are not limited to macrocell base stations, microcell base stations, home base stations, relay base stations, gNB (NR Node B) NR Node B, TRP (Transmitter Receiver Point) and other wireless communication devices.

[0507] The above is only a preferred embodiment of the present application and is not intended to limit the protection scope of the present application. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the present application shall be included in the protection scope of the present application.

Claims

1. A first node used for wireless communication, characterized in that: include: A first receiver receives a first signaling, wherein the first signaling is used to determine the release of only one of the first logical channel group or the second logical channel group; The first logical channel group includes at least one logical channel, and the second logical channel group includes at least one logical channel; data transmitted through the first logical channel group and data transmitted through the second logical channel group are associated with one PDCP entity; The first node is a user equipment (UE); the radio bearer to which the first logical channel group and the second logical channel group belong is an MRB, or the radio bearer to which the first logical channel group and the second logical channel group belong is a DRB.

2. The first node according to claim 1, characterized in that: The first signaling is used to determine the release of the first bearer or the second bearer, including: When the first signaling is identified by a non-unicast RNTI, the first logical channel group is released; when the first signaling is identified by a unicast RNTI, the first logical channel group is retained.

3. The first node according to claim 1, characterized in that: The first signaling is used to determine the release of the first bearer or the second bearer, including: The first signaling indicates a first threshold, and the first threshold is used to determine the release of the second logical channel group.

4. The first node according to claim 1 or 3, characterized in that: include: A first transmitter sends first control information, wherein the first control information indicates that the second logical channel group is released; wherein the first node is a UE.

5. The first node according to any one of claims 1 to 4, characterized in that: include: The first signaling includes a configuration of the second logical channel group.

6. The first node according to any one of claims 1 to 5, characterized in that: The first signaling is used to determine the release of only one of the first logical channel group or the second logical channel group, including: as a response to receiving the first signaling, stopping monitoring the scheduling signaling of the data transmitted through the first logical channel group on the air interface.

7. The first node according to any one of claims 1 to 5, characterized in that: The first signaling is used to determine the release of only one of the first logical channel group or the second logical channel group, including: as a response to receiving the first signaling, stopping monitoring the scheduling signaling of the data transmitted through the second logical channel group on the air interface.

8. A second node used for wireless communication, characterized in that: include: A second transmitter sends a first signaling, wherein the first signaling is used to determine the release of only one of the first logical channel group or the second logical channel group; The first logical channel group includes at least one logical channel, and the second logical channel group includes at least one logical channel; data transmitted through the first logical channel group and data transmitted through the second logical channel group are associated with one PDCP entity; The second node is a base station device; the radio bearer to which the first logical channel group and the second logical channel group belong is an MRB, or the radio bearer to which the first logical channel group and the second logical channel group belong is a DRB.

9. A method in a first node for wireless communication, characterized in that: include: receiving first signaling, the first signaling being used to determine the release of only one of the first logical channel group or the second logical channel group; The first logical channel group includes at least one logical channel, and the second logical channel group includes at least one logical channel; data transmitted through the first logical channel group and data transmitted through the second logical channel group are associated with one PDCP entity; The first node is a user equipment (UE); the radio bearer to which the first logical channel group and the second logical channel group belong is an MRB, or the radio bearer to which the first logical channel group and the second logical channel group belong is a DRB.

10. The method in the first node according to claim 9, characterized in that: The first signaling is used to determine the release of the first bearer or the second bearer, including: When the first signaling is identified by a non-unicast RNTI, the first logical channel group is released; when the first signaling is identified by a unicast RNTI, the first logical channel group is retained.

11. The method in the first node according to claim 9 or 10, characterized in that: The first signaling is used to determine the release of the first bearer or the second bearer, including: The first signaling indicates a first threshold, and the first threshold is used to determine the release of the second logical channel group.

12. The method in the first node according to any one of claims 9 to 11, characterized in that: include: First control information is sent, wherein the first control information indicates that the second logical channel group is released, wherein the first node is a UE.

13. The method in the first node according to any one of claims 9 to 12, characterized in that: include: The first signaling includes a configuration of the second logical channel group.

14. The method in the first node according to any one of claims 9 to 13, characterized in that: The first signaling is used to determine the release of only one of the first logical channel group or the second logical channel group, including: as a response to receiving the first signaling, stopping monitoring the scheduling signaling of the data transmitted through the first logical channel group on the air interface.

15. The method in the first node according to any one of claims 9 to 13, characterized in that: The first signaling is used to determine the release of only one of the first logical channel group or the second logical channel group, including: as a response to receiving the first signaling, stopping monitoring the scheduling signaling of the data transmitted through the second logical channel group on the air interface.

16. A method in a second node for wireless communication, characterized in that: include: sending first signaling, wherein the first signaling is used to determine the release of only one of the first logical channel group or the second logical channel group; The first logical channel group includes at least one logical channel, and the second logical channel group includes at least one logical channel; data transmitted through the first logical channel group and data transmitted through the second logical channel group are associated with one PDCP entity; The second node is a base station device; the radio bearer to which the first logical channel group and the second logical channel group belong is an MRB, or the radio bearer to which the first logical channel group and the second logical channel group belong is a DRB.

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